Home / 928,789.76-1,281,425.28-520,832

Finding the Fourth Proportional to 928,789.76, 1,281,425.28 and 520,832

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Solution

The fourth proportional to 928,789.76, 1,281,425.28 and 520,832 is: 718,577.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,789.76 : 1,281,425.28 = 520,832 : x
  2. Step 2: Convert to fraction form
    928,789.76/1,281,425.28 = 520,832/x
  3. Step 3: Cross multiply
    928,789.76x = 1,281,425.28 × 520,832
  4. Step 4: Simplify right side
    928,789.76x = 667,407,291,432.96
  5. Step 5: Solve for x
    x = 667,407,291,432.96/928,789.76
  6. Step 6: Final answer
    x = 718,577.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.